/**
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.pubsub;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.UnknownFormatConversionException;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smackx.Form;
import org.jivesoftware.smackx.FormField;
import org.jivesoftware.smackx.packet.DataForm;
/**
* A decorator for a {@link Form} to easily enable reading and updating
* of subscription options. All operations read or update the underlying {@link DataForm}.
*
* <p>Unlike the {@link Form}.setAnswer(XXX)} methods, which throw an exception if the field does not
* exist, all <b>SubscribeForm.setXXX</b> methods will create the field in the wrapped form
* if it does not already exist.
*
* @author Robin Collier
*/
public class SubscribeForm extends Form
{
public SubscribeForm(DataForm configDataForm)
{
super(configDataForm);
}
public SubscribeForm(Form subscribeOptionsForm)
{
super(subscribeOptionsForm.getDataFormToSend());
}
public SubscribeForm(FormType formType)
{
super(formType.toString());
}
/**
* Determines if an entity wants to receive notifications.
*
* @return true if want to receive, false otherwise
*/
public boolean isDeliverOn()
{
return parseBoolean(getFieldValue(SubscribeOptionFields.deliver));
}
/**
* Sets whether an entity wants to receive notifications.
*
* @param deliverNotifications
*/
public void setDeliverOn(boolean deliverNotifications)
{
addField(SubscribeOptionFields.deliver, FormField.TYPE_BOOLEAN);
setAnswer(SubscribeOptionFields.deliver.getFieldName(), deliverNotifications);
}
/**
* Determines if notifications should be delivered as aggregations or not.
*
* @return true to aggregate, false otherwise
*/
public boolean isDigestOn()
{
return parseBoolean(getFieldValue(SubscribeOptionFields.digest));
}
/**
* Sets whether notifications should be delivered as aggregations or not.
*
* @param digestOn true to aggregate, false otherwise
*/
public void setDigestOn(boolean digestOn)
{
addField(SubscribeOptionFields.deliver, FormField.TYPE_BOOLEAN);
setAnswer(SubscribeOptionFields.deliver.getFieldName(), digestOn);
}
/**
* Gets the minimum number of milliseconds between sending notification digests
*
* @return The frequency in milliseconds
*/
public int getDigestFrequency()
{
return Integer.parseInt(getFieldValue(SubscribeOptionFields.digest_frequency));
}
/**
* Sets the minimum number of milliseconds between sending notification digests
*
* @param frequency The frequency in milliseconds
*/
public void setDigestFrequency(int frequency)
{
addField(SubscribeOptionFields.digest_frequency, FormField.TYPE_TEXT_SINGLE);
setAnswer(SubscribeOptionFields.digest_frequency.getFieldName(), frequency);
}
/**
* Get the time at which the leased subscription will expire, or has expired.
*
* @return The expiry date
*/
public Date getExpiry()
{
String dateTime = getFieldValue(SubscribeOptionFields.expire);
try
{
return StringUtils.parseDate(dateTime);
}
catch (ParseException e)
{
UnknownFormatConversionException exc = new UnknownFormatConversionException(dateTime);
exc.initCause(e);
throw exc;
}
}
/**
* Sets the time at which the leased subscription will expire, or has expired.
*
* @param expire The expiry date
*/
public void setExpiry(Date expire)
{
addField(SubscribeOptionFields.expire, FormField.TYPE_TEXT_SINGLE);
setAnswer(SubscribeOptionFields.expire.getFieldName(), StringUtils.formatXEP0082Date(expire));
}
/**
* Determines whether the entity wants to receive an XMPP message body in
* addition to the payload format.
*
* @return true to receive the message body, false otherwise
*/
public boolean isIncludeBody()
{
return parseBoolean(getFieldValue(SubscribeOptionFields.include_body));
}
/**
* Sets whether the entity wants to receive an XMPP message body in
* addition to the payload format.
*
* @param include true to receive the message body, false otherwise
*/
public void setIncludeBody(boolean include)
{
addField(SubscribeOptionFields.include_body, FormField.TYPE_BOOLEAN);
setAnswer(SubscribeOptionFields.include_body.getFieldName(), include);
}
/**
* Gets the {@link PresenceState} for which an entity wants to receive
* notifications.
*
* @return iterator over the list of states
*/
public Iterator<PresenceState> getShowValues()
{
ArrayList<PresenceState> result = new ArrayList<PresenceState>(5);
Iterator<String > it = getFieldValues(SubscribeOptionFields.show_values);
while (it.hasNext())
{
String state = it.next();
result.add(PresenceState.valueOf(state));
}
return result.iterator();
}
/**
* Sets the list of {@link PresenceState} for which an entity wants
* to receive notifications.
*
* @param stateValues The list of states
*/
public void setShowValues(Collection<PresenceState> stateValues)
{
ArrayList<String> values = new ArrayList<String>(stateValues.size());
for (PresenceState state : stateValues)
{
values.add(state.toString());
}
addField(SubscribeOptionFields.show_values, FormField.TYPE_LIST_MULTI);
setAnswer(SubscribeOptionFields.show_values.getFieldName(), values);
}
static private boolean parseBoolean(String fieldValue)
{
return ("1".equals(fieldValue) || "true".equals(fieldValue));
}
private String getFieldValue(SubscribeOptionFields field)
{
FormField formField = getField(field.getFieldName());
return formField.getValues().next();
}
private Iterator<String> getFieldValues(SubscribeOptionFields field)
{
FormField formField = getField(field.getFieldName());
return formField.getValues();
}
private void addField(SubscribeOptionFields nodeField, String type)
{
String fieldName = nodeField.getFieldName();
if (getField(fieldName) == null)
{
FormField field = new FormField(fieldName);
field.setType(type);
addField(field);
}
}
}